Chapter007.doc

Chapter 007 Input and Output

Multiple Choice Questions

1. _____ is any data or instructions sent to the computer. A. DigitalB. OutputC. InformationD. Input

2. The arrangement of keys on a keyboard, QWERTY reflects the keyboard layout by: A. representing the phonetics of the alphabets most closely associated with the keyboard.B. taking the letters of the first six alphabetic characters found on the top row of keys.C. using the alphabetic characters most frequently used on the keyboard.D. using the letters of the alphabetic characters that are closest to access while typing.

3. If your wrist is getting strained from repetitive typing, it is advisable to use a(n) A. ergonomic keyboardB. wireless keyboardC. traditional keyboardD. flexible keyboard

4. This type of keyboard uses a touch screen as the input device. A. PDA keyboardB. Wireless keyboardC. Traditional keyboardD. Virtual keyboard

5. A keyboard key, like Caps Lock, that turns a feature on or off is called a _____ key. A. powerB. toggleC. functionD. combination

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6. This type of mouse is currently the most widely used. A. MechanicalB. CordlessC. WirelessD. Optical

7. Instead of using a mouse, you can use this pointing device to control the pointer by rotating a ball with your thumb. A. Pointing stickB. TouchpadC. JoystickD. Trackball

8. Tablet PCs and PDAs use a A. joy stickB. light penC. stylusD. mouse

9. Which of the following is not a type of scanning device? A. Optical scannerB. Bar code readerC. Light penD. Character and mark recognition device

10. Bar code readers use _______ embedded in them to read bar codes. A. coprocessorsB. magnetic cellsC. RFID microchipD. photoelectric cells

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11. This reading device is readily used in banks to read the numbers on the bottom of checks and deposit slips. A. MICRB. OCRC. OMRD. UPC

12. Which of the following types of character recognition systems is used for standardized multiple-choice testing? A. UPCB. MICRC. OMRD. OCR

13. OMR, OCR, and MICR are all types of A. Radio Frequency Card Readers (RFID)B. magnetic card readersC. bar code readersD. character and mark recognition devices

14. _____-input devices convert sounds into a form that can be processed by the system unit. A. ElectrolyzingB. PlottingC. WebCamD. Audio

15. The most widely used audio-input device is the A. WebCamB. radio frequency card readerC. microphoneD. stylus

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16. The individual dots that form the image on a monitor are called A. picasB. bitsC. pixelsD. bytes

17. These are the most widely used type of monitor today. A. Flat-panel monitorsB. CRT monitorsC. Projector monitorsD. E-book readers

18. This indicates the distance between each pixel. A. Dot pitchB. Refresh rateC. ResolutionD. Word size

19. Images displayed on monitors need to have a refresh rate of at least _____, otherwise they flicker causing eye strain. A. 50 hertzB. 75 hertzC. 100 hertzD. 120 hertz

20. Used commonly for classroom presentations, _____ connect to microcomputers to give output similar to a monitor. A. scannersB. HDTVC. e-booksD. data projectors

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21. What kind of specialized monitor is especially useful for graphic artists, designers and publishers? A. Flat-panel monitorB. CRT monitorC. High-definition television (HDTV)D. e-books

22. Which of the following statements is incorrect? A. Printer resolution is measured in dpi (dots per inch).B. Printer output is often called hard copy.C. Memory within a printer is used to store printing instructions and documents waiting to be printed.D. Printer speed is measured in the number of words printed per minute.

23. Two categories of laser printers are A. thermal and personalB. personal and sharedC. ink-jet and high-definitionD. active-matrix and passive matrix

24. Which of the following printer features enables you to print on both sides of a sheet of paper? A. SimplexB. DuplexC. ResolutionD. Dual Matrix

25. Which of the following allows the transmission of telephone calls over computer networks? A. FaxingB. Cell phonesC. PDAsD. Voice over IP

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True / False Questions

26. The most widely used input devices are monitors, printers, and keyboards. True False

27. Function keys provide shortcuts for specific tasks. True False

28. An optical mouse uses light in order to detect movement. True False

29. A touch screen is classified as a special type of scanning device. True False

30. A stylus uses pressure to draw images on a screen. True False

31. Many ATMs use touch screen monitors. True False

32. Optical scanners recognize individual letters or images. True False

33. A magnetic card reader does not require the card to actually make contact with the reader. True False

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34. An MICR device senses the presence or absence of a mark, such as a pencil mark. True False

35. The monitor size is measured by the diagonal length of the viewing area. True False

36. In an active-matrix flat panel monitor, each pixel is independently activated. True False

37. 3D HDTV requires special viewing glasses in order to achieve a three-dimensional viewing experience. True False

38. Discarded CRTs are a serious threat to the environment, given their high content levels of lead and other hazardous materials. True False

39. A laser printer sprays tiny drops of ink onto the page. True False

40. Shared laser printers typically support color, are more expensive, and are used by a group of people. True False

41. Portable printers are very specialized devices that can be used by mapmakers to record or trace maps. True False

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42. Fax machines scan the image of a document converting the light and dark areas into a format that can be sent electronically over the Internet. True False

43. Digital music players, also known as digital media players, are specialized devices for storing, transferring, and playing audio files. True False

44. Telephony is also known as Internet telephony, IP telephony, and Voice over IP (VoIP). True False

45. Compared to traditional telephone calls, Internet-supported calls may have a lower sound quality. True False

Fill in the Blank Questions

46. The _____ keyboard uses air as a medium to transmit input into the system unit. ________________________________________

47. Joysticks, touch screens, and styluses are all types of _____ devices. ________________________________________

48. Flatbed and portable are two types of _____ scanners. ________________________________________

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49. Graphics and advertising professionals are more likely to use _____ scanners. ________________________________________

50. The most common card reader is the _____ card reader. ________________________________________

51. _____ systems use a microphone, a sound card, and special software and allow users to operate computers and to create documents using voice commands. ________________________________________

52. _____ rate indicates how often a displayed image is updated or redrawn on the monitor. ________________________________________

53. Thin film transistor (TFT) monitors are also called _____-matrix monitors. ________________________________________

54. _____ connect to microcomputers and project computer output just as it would appear on a monitor. ________________________________________

55. _____ printers use a technology similar to that used in a photocopy machine. ________________________________________

56. _____ printers are widely used with ATMs. ________________________________________

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57. _____ printers are designed to work with a notebook computer. ________________________________________

58. _____ are special-purpose printers typically found in architectural and engineering environments. ________________________________________

59. _____ telephones are specialized input and output devices for receiving and sending voice communication. ________________________________________

60. _____ machines are used to send and receive images over telephone lines. ________________________________________

61. _____ communications require that both parties have a computer and that their computers are on and connected to the Internet when a call is placed. ________________________________________

62. Voice over _____ is the transmission of telephone calls over computer networks. ________________________________________

63. _____ communications allow a user to call almost any traditional telephone from his or her computer. ________________________________________

64. _____ communications do not require a computer. ________________________________________

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65. _____ writers prepare computer-related instruction manuals. ________________________________________

Essay Questions

66. Describe the three types of mouse designs.

67. Describe alternatives to a traditional mouse.

68. How does an optical scanner work?

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69. How does a bar code reader work?

70. What are character and mark recognition devices? Describe their uses.

71. How is voice recognition technology being used today?

72. Name and describe three types of monitors.

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73. What is HDTV? What is 3D HDTV?

74. What is a multifunctional device? What are the advantages/disadvantages of such a device?

75. What is VoIP and how does it work?

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Chapter 007 Input and Output Key

Multiple Choice Questions

1. (p. 188) _____ is any data or instructions sent to the computer. A. DigitalB. OutputC. InformationD. Input

Input is any data or instructions that are used by a computer.

Difficulty: Easy

2. (p. 189) The arrangement of keys on a keyboard, QWERTY reflects the keyboard layout by: A. representing the phonetics of the alphabets most closely associated with the keyboard.B. taking the letters of the first six alphabetic characters found on the top row of keys.C. using the alphabetic characters most frequently used on the keyboard.D. using the letters of the alphabetic characters that are closest to access while typing.

This name reflects the keyboard layout by taking the letters of the first six alphabetic characters found on the top row of keys displaying letters.

Difficulty: Easy

3. (p. 189) If your wrist is getting strained from repetitive typing, it is advisable to use a(n) A. ergonomic keyboardB. wireless keyboardC. traditional keyboardD. flexible keyboard

Ergonomic keyboards are designed specifically to alleviate wrist strain associated with the repetitive movements of typing.

Difficulty: Medium

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4. (p. 189) This type of keyboard uses a touch screen as the input device. A. PDA keyboardB. Wireless keyboardC. Traditional keyboardD. Virtual keyboard

Virtual keyboards display an image of a keyboard on a touch screen device. The screen functions as the actual input device, which is why the keyboard is considered virtual.

Difficulty: Medium

5. (p. 189) A keyboard key, like Caps Lock, that turns a feature on or off is called a _____ key. A. powerB. toggleC. functionD. combination

A toggle key turns a feature on or off.

Difficulty: Easy

6. (p. 191) This type of mouse is currently the most widely used. A. MechanicalB. CordlessC. WirelessD. Optical

The optical mouse is currently the most widely used.

Difficulty: Easy

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7. (p. 191) Instead of using a mouse, you can use this pointing device to control the pointer by rotating a ball with your thumb. A. Pointing stickB. TouchpadC. JoystickD. Trackball

A trackball has a ball on the top that you move with your thumb.

Difficulty: Easy

8. (p. 192, 193) Tablet PCs and PDAs use a A. joy stickB. light penC. stylusD. mouse

A stylus is a penlike device commonly used with tablet PCs and PDAs.

Difficulty: Easy

9. (p. 193) Which of the following is not a type of scanning device? A. Optical scannerB. Bar code readerC. Light penD. Character and mark recognition device

There are four types of scanning devices: optical scanners, card readers, bar code readers, and character and mark recognition devices.

Difficulty: Easy

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10. (p. 195) Bar code readers use _______ embedded in them to read bar codes. A. coprocessorsB. magnetic cellsC. RFID microchipD. photoelectric cells

Bar code readers contain photoelectric cells that scan or read bar codes, or the vertical zebra-striped marks printed on product containers.

Difficulty: Hard

11. (p. 196) This reading device is readily used in banks to read the numbers on the bottom of checks and deposit slips. A. MICRB. OCRC. OMRD. UPC

Magnetic-ink character recognition (MICR) devices are used by banks to read the numbers on the bottom of checks and deposit slips.

Difficulty: Medium

12. (p. 196) Which of the following types of character recognition systems is used for standardized multiple-choice testing? A. UPCB. MICRC. OMRD. OCR

Optical-mark recognition (OMR) is used to score standardized multiple-choice tests.

Difficulty: Medium

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13. (p. 195, 196) OMR, OCR, and MICR are all types of A. Radio Frequency Card Readers (RFID)B. magnetic card readersC. bar code readersD. character and mark recognition devices

These are all character and mark recognition devices, scanners that are able to recognize special characters and marks.

Difficulty: Medium

14. (p. 197) _____-input devices convert sounds into a form that can be processed by the system unit. A. ElectrolyzingB. PlottingC. WebCamD. Audio

Audio-input devices convert sounds into a form that can be processed by the system unit.

Difficulty: Medium

15. (p. 197) The most widely used audio-input device is the A. WebCamB. radio frequency card readerC. microphoneD. stylus

A microphone is the most widely used audio-input device.

Difficulty: Easy

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16. (p. 200) The individual dots that form the image on a monitor are called A. picasB. bitsC. pixelsD. bytes

Images are formed on a monitor by a series of dots or pixels.

Difficulty: Easy

17. (p. 201) These are the most widely used type of monitor today. A. Flat-panel monitorsB. CRT monitorsC. Projector monitorsD. E-book readers

Flat-panel monitors are the most widely used type of monitor today.

Difficulty: Easy

18. (p. 200) This indicates the distance between each pixel. A. Dot pitchB. Refresh rateC. ResolutionD. Word size

Dot (pixel) pitch is the distance between each pixel.

Difficulty: Medium

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19. (p. 201) Images displayed on monitors need to have a refresh rate of at least _____, otherwise they flicker causing eye strain. A. 50 hertzB. 75 hertzC. 100 hertzD. 120 hertz

Images displayed on monitors with refresh rates lower than 75 hertz appear to flicker and can cause eye strain.

Difficulty: Medium

20. (p. 202) Used commonly for classroom presentations, _____ connect to microcomputers to give output similar to a monitor. A. scannersB. HDTVC. e-booksD. data projectors

Data projectors are specialized devices that connect to microcomputers and project computer output just as it would appear on a monitor.

Difficulty: Easy

21. (p. 202) What kind of specialized monitor is especially useful for graphic artists, designers and publishers? A. Flat-panel monitorB. CRT monitorC. High-definition television (HDTV)D. e-books

Output from HDTV is digital and can be used to create high-quality still images. This technology is very useful to graphic artists, designers, and publishers.

Difficulty: Medium

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22. (p. 204) Which of the following statements is incorrect? A. Printer resolution is measured in dpi (dots per inch).B. Printer output is often called hard copy.C. Memory within a printer is used to store printing instructions and documents waiting to be printed.D. Printer speed is measured in the number of words printed per minute.

Speed is measured in the number of pages printed per minute.

Difficulty: Medium

23. (p. 205) Two categories of laser printers are A. thermal and personalB. personal and sharedC. ink-jet and high-definitionD. active-matrix and passive matrix

Personal laser printers are less expensive and can typically print 15 to 17 pages per minute. Shared laser printers are more expensive and typically print more than 50 pages per minute.

Difficulty: Hard

24. (p. 204) Which of the following printer features enables you to print on both sides of a sheet of paper? A. SimplexB. DuplexC. ResolutionD. Dual Matrix

Duplex printing allows automatic printing on both sides of a sheet of paper.

Difficulty: Easy

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25. (p. 208) Which of the following allows the transmission of telephone calls over computer networks? A. FaxingB. Cell phonesC. PDAsD. Voice over IP

Voice over IP (VoIP) is the transmission of telephone calls over computer networks.

Difficulty: Medium

True / False Questions

26. (p. 188) The most widely used input devices are monitors, printers, and keyboards. FALSE

Difficulty: Medium

27. (p. 189) Function keys provide shortcuts for specific tasks. TRUE

Difficulty: Hard

28. (p. 191) An optical mouse uses light in order to detect movement. TRUE

Difficulty: Easy

29. (p. 192) A touch screen is classified as a special type of scanning device. FALSE

Difficulty: Easy

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30. (p. 192, 193) A stylus uses pressure to draw images on a screen. TRUE

Difficulty: Hard

31. (p. 192) Many ATMs use touch screen monitors. TRUE

Difficulty: Medium

32. (p. 193) Optical scanners recognize individual letters or images. FALSE

Difficulty: Easy

33. (p. 194) A magnetic card reader does not require the card to actually make contact with the reader. FALSE

Difficulty: Easy

34. (p. 196) An MICR device senses the presence or absence of a mark, such as a pencil mark. FALSE

Difficulty: Medium

35. (p. 200) The monitor size is measured by the diagonal length of the viewing area. TRUE

Difficulty: Medium

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36. (p. 201) In an active-matrix flat panel monitor, each pixel is independently activated. TRUE

Difficulty: Medium

37. (p. 202) 3D HDTV requires special viewing glasses in order to achieve a three-dimensional viewing experience. TRUE

Difficulty: Easy

38. (p. 202) Discarded CRTs are a serious threat to the environment, given their high content levels of lead and other hazardous materials. TRUE

Difficulty: Easy

39. (p. 205) A laser printer sprays tiny drops of ink onto the page. FALSE

Difficulty: Easy

40. (p. 205) Shared laser printers typically support color, are more expensive, and are used by a group of people. TRUE

Difficulty: Easy

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41. (p. 206) Portable printers are very specialized devices that can be used by mapmakers to record or trace maps. FALSE

Difficulty: Medium

42. (p. 207) Fax machines scan the image of a document converting the light and dark areas into a format that can be sent electronically over the Internet. FALSE

Difficulty: Medium

43. (p. 207) Digital music players, also known as digital media players, are specialized devices for storing, transferring, and playing audio files. TRUE

Difficulty: Easy

44. (p. 208) Telephony is also known as Internet telephony, IP telephony, and Voice over IP (VoIP). TRUE

Difficulty: Easy

45. (p. 208) Compared to traditional telephone calls, Internet-supported calls may have a lower sound quality. TRUE

Difficulty: Medium

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Fill in the Blank Questions

46. (p. 189) The _____ keyboard uses air as a medium to transmit input into the system unit. wireless

Wireless keyboards transmit input to the system unit through the air.

Difficulty: Easy

47. (p. 192) Joysticks, touch screens, and styluses are all types of _____ devices. pointing

There are a wide variety of different pointing devices, including the mouse, joystick, touch screen, and stylus.

Difficulty: Medium

48. (p. 193) Flatbed and portable are two types of _____ scanners. optical

There are three basic types of optical scanners: flatbed, document, and portable.

Difficulty: Easy

49. (p. 194) Graphics and advertising professionals are more likely to use _____ scanners. optical

Optical scanners are powerful tools for a wide variety of end users, including graphics and advertising professionals who scan images and combine them with text.

Difficulty: Easy

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50. (p. 194) The most common card reader is the _____ card reader. magnetic

Magnetic card readers are by far the most common type of card reader.

Difficulty: Easy

51. (p. 197) _____ systems use a microphone, a sound card, and special software and allow users to operate computers and to create documents using voice commands. Voice recognition

Voice recognition systems use a microphone, a sound card, and special software. These systems allow users to operate computers and to create documents using voice commands.

Difficulty: Medium

52. (p. 201) _____ rate indicates how often a displayed image is updated or redrawn on the monitor. Refresh

Refresh rate indicates how often a displayed image is updated or redrawn on the monitor.

Difficulty: Easy

53. (p. 201) Thin film transistor (TFT) monitors are also called _____-matrix monitors. active

Active-matrix or thin film transistor (TFT) monitors do not scan down the screen; instead, each pixel is independently activated.

Difficulty: Easy

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54. (p. 202) _____ connect to microcomputers and project computer output just as it would appear on a monitor. Data projectors

Data projectors are devices that connect to microcomputers and project computer output just as it would appear on a monitor.

Difficulty: Medium

55. (p. 205) _____ printers use a technology similar to that used in a photocopy machine. Laser

Laser printers use a laser light beam to produce images with excellent letter and graphics quality.

Difficulty: Easy

56. (p. 205) _____ printers are widely used with ATMs. Thermal

Thermal printers are widely used with ATMs and gasoline pumps to print receipts.

Difficulty: Medium

57. (p. 206) _____ printers are designed to work with a notebook computer. Portable

Portable printers are usually small and lightweight printers designed to work with a notebook computer.

Difficulty: Easy

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58. (p. 206) _____ are special-purpose printers typically found in architectural and engineering environments. Plotters

Plotters are special-purpose printers for producing a wide range of specialized output.

Difficulty: Medium

59. (p. 208) _____ telephones are specialized input and output devices for receiving and sending voice communication. Internet

Internet telephones are specialized input and output devices for receiving and sending voice communication.

Difficulty: Easy

60. (p. 207) _____ machines are used to send and receive images over telephone lines. Fax

Fax machines are separate stand-alone devices for sending and receiving images over telephone lines.

Difficulty: Easy

61. (p. 208) _____ communications require that both parties have a computer and that their computers are on and connected to the Internet when a call is placed. Computer-to-computer

Computer-to-computer communications allow individuals to place free long-distance calls.

Difficulty: Medium

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62. (p. 208) Voice over _____ is the transmission of telephone calls over computer networks. IP

Voice over IP (VoIP) is the transmission of telephone calls over computer networks.

Difficulty: Easy

63. (p. 208) _____ communications allow a user to call almost any traditional telephone from his or her computer. Computer-to-traditional telephone

Computer-to-traditional telephone communications allow a user to call almost any traditional telephone from his or her computer.

Difficulty: Medium

64. (p. 208) _____ communications do not require a computer. Traditional telephone-to-traditional telephone

Traditional telephone-to-traditional telephone communications do not require a computer.

Difficulty: Hard

65. (p. 209) _____ writers prepare computer-related instruction manuals. Technical

Technical writers prepare instruction manuals, technical reports, and other scientific or technical documents.

Difficulty: Medium

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Essay Questions

66. (p. 191) Describe the three types of mouse designs.

The three types of mouse designs are mechanical, optical, and wireless. A mechanical mouse has a ball on the bottom and is attached with a cord to the system unit. An optical has no moving parts. It emits and senses light to detect mouse movement. A wireless mouse is battery-powered and typically sends either a radio or infrared signal to communicate with the system unit, thereby eliminating the need for a cord.

Difficulty: Medium

67. (p. 191, 192) Describe alternatives to a traditional mouse.

Trackballs, also known as rollerballs, control the pointer when you rotate a ball with your thumb. Touch pads control the pointer when you move and tap your finger on the surface of the pad. Pointing sticks, in the middle of some keyboards, control the pointer when you direct the stick with one finger.

Difficulty: Easy

68. (p. 193) How does an optical scanner work?

Often simply called a scanner, an optical scanner scans image or text documents and converts them to machine-readable form. These devices do not recognize individual letters or images. Rather, they recognize light, dark, and colored areas that make up individual letters or images. Typically, scanned documents are saved in files that can be further processed, displayed, printed, or stored for later use.

Difficulty: Medium

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69. (p. 195) How does a bar code reader work?

Bar code readers are used extensively in almost all supermarkets. At the checkout counter, electronic cash registers use a bar code reader to scan each product's UPC code. The codes are sent to the supermarket's computer, which has a description, the latest price, and an inventory level for each product. The computer processes this input to update the inventory level and to provide the electronic cash register with the description and price for each product.

Difficulty: Medium

70. (p. 195, 196) What are character and mark recognition devices? Describe their uses.

Character and mark recognition devices are scanners that can recognize special characters and marks. Magnetic-ink character recognition (MICR) devices are used by banks to automatically read numbers on the bottom of checks and deposit slips. Optical-character recognition (OCR) uses special pre-printed characters that can be read by a light source and changed into machine-readable code. They are used in department stores to read retail price tags. Optical-mark recognition (OMR) senses the presence or absence of a mark, such as a pencil mark. OMR is often used to score standardized multiple-choice tests.

Difficulty: Medium

71. (p. 197, 200) How is voice recognition technology being used today?

Voice-recognition systems allow users to operate computers and other devices as well as to create documents using voice commands. Examples include voice-controlled dialing features on mobile phones, navigation on GPS devices, and control of car audio systems.

Difficulty: Easy

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72. (p. 200, 201) Name and describe three types of monitors.

Until recently, cathode-ray tube (CRT) monitors were the most common type of monitor for home and office use. These monitors are similar in size and technology to CRT televisions. CRT monitors have been replaced by flat panel monitors as the most widely used type of monitor today. They are thinner and more portable and require less power to operate than old CRT monitors. Most flat-panel monitors use liquid crystal display (LCD). E-book readers are handheld monitors that display text and graphics. The Amazon Kindle is a popular example of an e-book reader. Data projectors project the image on to a screen, like a slide projector. Finally, HDTV delivers a much clearer and more detailed wide-screen picture than regular television. Because the output is digital, users can freeze video sequences to create high-quality still images.

Difficulty: Medium

73. (p. 202) What is HDTV? What is 3D HDTV?

High-definition television (HDTV) delivers a much clearer and more detailed wide-screen picture than regular television. Because the output is digital, users can readily freeze video sequences to create high-quality still images. The video and still images can then be digitized, edited, and stored on disk for later use. This technology is very useful to graphic artists, designers, and publishers. One of the most recent and dramatic advances is 3D HDTV. Using special viewing glasses, 3D HDTV provides theater-quality three-dimensional viewing.

Difficulty: Medium

74. (p. 207) What is a multifunctional device? What are the advantages/disadvantages of such a device?

A multifunctional device (MFD) typically combines the capabilities of a scanner, printer, fax, and copy machine. They cost about the same as a good printer or copy machine but require much less space than the single-function devices they replace. Their disadvantage is that the quality and functionality are not quite as good as those of the separate single-purpose devices.

Difficulty: Easy

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75. (p. 208) What is VoIP and how does it work?

Voice over IP (VoIP) uses the Internet rather than traditional communication lines to support voice communication. To place telephone calls using Internet telephony requires a high-speed Internet connection and special software and/or hardware. Computer-to-computer communications require that both parties have a computer connected to the Internet when a call is placed. Computer-to-traditional telephone communications provide a subscription service whereby the subscriber can call almost any traditional telephone from his or her computer. Traditional telephone-to-traditional telephone services do not require a computer. Special Internet phone service providers (like your cable company) provide a special hardware adapter that connects a traditional telephone to the Internet.

Difficulty: Hard

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